Structural shape for columns



(No Model.) v E. M. BUTZ.

STRUCTURAL SHAPE FOR COLUMNS, PILASTERS, &c.

No. 308,825. Patented Dec. 2, 1884.

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UNITED STATES PATENT OFFICE.

EDWARD M. BUTZ, OF ALLEGHENY, PENNSYLVANIA.

STRUCTURAL SHAPE FOR COLUMNS, PILASTERS, 840.

SPECIFICATION forming part of Letters Patent No. 308,825, dated December2, 1884.

Application filed January 10, 1884. (No model.)

To all whom it may concern:

Be it known that I, EDWARD M. Bnrz, a citizen of the United States,residing at Allegheny, county of Allegheny, State of Pennsylvania, haveinvented or discovered a new and useful Improvement in Structural Shapesfor Columns, Pilasters, Girders, 850.; and I do hereby declare thefollowing to be a full, clear, concise, and exact description thereof,reference being had to the accompanying drawings, making a part of thisspecification, in which-like letters indicating like parts- Figure 1 isa view in perspective of a metal shape plate or bar adapted for use incolumns or girders embodying my invention; Fig. 2, a transverse sectionthrough the same; Fig. 3, a View in perspective of a column illustratingan application of the same, and Fig. 4 a trans verse section throughsaid column.

My invention relates to the construction of rolled-metal columns,pilasters, or girders for buildings, bridges, and other structural uses;and my improvements consist in a composite pilaster, column, or girderhaving one or more of its webs formed of a plate of section asdescribed, all as hereinafter fully set forth.

To carry out my invention I form, of rolled iron or steel, a plate orbar, A, the transverse section of which accords substantially with thatshown in the several figuresto wit, that of a series of alternatelyoppositely-inclined planes, at and a, united at opposite sides one tothe other, so as to form a continuous series of VS or double inclinesconnected at their tops, and of greater or less obliquity on theirsides, as desired.

In the construction of a composite column, pilaster, or girder I takeone or more shapes A of section as described, and unite it or them byrivets or bolts to one or more rolled plates,

which may be of similar orof any other section desired. A columncomposed of four similar shapes A, united at their edges, is shown inFigs. 3 and 4, and it will be obvious that by combining a shape A withone or more shapes of different section the transverse form anddimensions of the columns may be varied within a wide range, as may bedesired or required.

My invention is of special applicability in the construction ofpilasters for wrougl1t-metal fronts for buildings, as combining strengthwith architectural ornamention, and, in such applications, the plate Ais located upon the front of the pilaster, and is preferably combinedwith plates of such section as to present fiat or flattened faces on thesides and rear thereof-as, for example, one or morechannelplates-present.ing flanges suitably inclined to abut against theouter inclines of the shape A, and having either plain or projectingfaces, at the option of the constructor.

I claim herein as my invention A composite column, pilaster, or girder,formed of rolled-metal plates united at their edges, and having upon oneor more of its faces a web formed of a plate of shape or section,substantially as herein described and shown.

In testimony whereof I have hereunto set my hand.

EDVARD M. BUTZ.

Vitnesses:

J. SNowDEN BELL, R. H. WHITTLEsEY.

